> Western Medicines > Betadine


Used for: Skin disinfection
Chinese name:

What is Betadine for?

Betadine is a brand product used as an antiseptic against microbes (bacteria, fungi, viruses). Its active ingredient, Povdidone iodine, is a broad spectrum antiseptic which is effective in killing many pathogens. It can be applied on the skin for disinfection, or gargle as mouthwashes. It is intended for external use only. Do not swallow or take orally.

How to use it?

For mouthwash / throat spray, they are used as symptomatic relief of inflammatory conditions of the mouth and pharynx, and sore throat due to common colds. They are also used as a prophylactic antiseptic during and after dental surgery.
Mouthwash: pour 20 ml into the cup and gargle for at least 30 seconds. Repeat 2-4 times a day if needed.
Throat spray: spray to the back of the throat (mucous membrane) every 3-4 hours. Repeat up to 3 times a day if needed.


For burn cream, it is used for major and minor burns, cuts and abrasions. Apply once or several times daily and cover with dressing or bandage if required.


For dry powder spray, it is used for the treatment and prevention of infection in wounds including ulcers, burns, cuts and other minor injuries. Spray from a distance of 6-10 inches onto the parts to be treated. Repeat every 3-4 hours if needed.


For topical solution, it is used as an antiseptic for cleaning of wounds (e.g. lacerations cut, burns of various degree). Apply sufficient amount of antiseptic solution to the affected area at least once.


For ointment, it is a topical antiseptic for burns, scalds, blisters, cuts, scratches and grazes. Apply 1-2 daily for a maximum of 14 days spread evenly over the area of damaged skin. If necessary, a dressing can be applied.


For vaginal gel / pessary, they are used to treat vaginitis due to infection. They can be used regardless of intervening menstruation, and should be used at night.
Vaginal gel: Apply a small amount of gel to the affected external vaginal area (1-2cm). It can also be used intravaginally. Fill the applicator with ~5g of gel and insert it high in vaginal and depress the plunger to deposit the gel.
Pessary: One pessary should be well-moistened with water first, and inserted (using the applicator) each night for at least 2 weeks.

What are the side effects of Betadine?

Common side effects of Betadine include local irritation, rash and burning sensation when applied to skin. Fluctuation in thyroid level may also occur over long term use.

Who should not take Betadine?

  • People who are allergic to iodine, povidone, or any component of the formulation
  • Children under 6 years of age
  • Patients with thyroid conditions
  • Pregnant of breastfeeding women should avoid using vaginal gel or pessary

Pharmacist Tips:

  • If symptoms persist after 7 days of use, discontinue and speak to your healthcare professionals.
  • If you experience any fatigue, palpitation while using Betadine, speak to your healthcare professionals as it could be signs of thyroid problems.

Common dosing schedule: 
Use Betadine as constructed by your healthcare professional.

This schedule is for reference only, adjustments may be made according to individual needs.


Some common medications Betadine may interact with:

  • Sodium Picosulfate

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Betadine in Hong Kong?

In Hong Kong, Betadine is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Betadine in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Available dosage
  • 5% (Cream)
  • 2.50% (Dry Powder Spray)
  • 1% (Mouthwashes)
  • 10% (Ointment)
  • 200mg (Pessaries)
  • 0.45% (Throat Spray)
  • 10% (Topical Solution)
  • 10% (Vaginal Gel)
Drug class
Sub class
Generic Names
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